1 /* $NetBSD: com_multi.c,v 1.17 2003/08/07 16:31:05 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1991 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)com.c 7.5 (Berkeley) 5/16/91 68 */ 69 70 /* 71 * COM driver, uses National Semiconductor NS16450/NS16550AF UART 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: com_multi.c,v 1.17 2003/08/07 16:31:05 agc Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/ioctl.h> 80 #include <sys/select.h> 81 #include <sys/tty.h> 82 #include <sys/proc.h> 83 #include <sys/user.h> 84 #include <sys/conf.h> 85 #include <sys/file.h> 86 #include <sys/uio.h> 87 #include <sys/kernel.h> 88 #include <sys/syslog.h> 89 #include <sys/device.h> 90 91 #include <machine/intr.h> 92 #include <machine/bus.h> 93 94 #include <dev/ic/comreg.h> 95 #include <dev/ic/comvar.h> 96 97 #include <dev/isa/isavar.h> 98 #include <dev/isa/com_multi.h> 99 100 int com_multi_probe __P((struct device *, struct cfdata *, void *)); 101 void com_multi_attach __P((struct device *, struct device *, void *)); 102 103 CFATTACH_DECL(com_multi, sizeof(struct com_softc), 104 com_multi_probe, com_multi_attach, NULL, NULL); 105 106 int 107 com_multi_probe(parent, match, aux) 108 struct device *parent; 109 struct cfdata *match; 110 void *aux; 111 { 112 int iobase; 113 struct cfdata *cf = match; 114 struct commulti_attach_args *ca = aux; 115 116 if (cf->cf_loc[COMMULTICF_SLAVE] != COMMULTICF_SLAVE_DEFAULT && 117 cf->cf_loc[COMMULTICF_SLAVE] != ca->ca_slave) 118 return (0); 119 120 iobase = ca->ca_iobase; 121 122 /* if it's in use as console, it's there. */ 123 if (com_is_console(ca->ca_iot, iobase, 0)) 124 return 1; 125 126 return comprobe1(ca->ca_iot, ca->ca_ioh); 127 } 128 129 void 130 com_multi_attach(parent, self, aux) 131 struct device *parent, *self; 132 void *aux; 133 { 134 struct com_softc *sc = (void *)self; 135 struct commulti_attach_args *ca = aux; 136 137 /* 138 * We're living on a commulti. 139 */ 140 sc->sc_iot = ca->ca_iot; 141 sc->sc_ioh = ca->ca_ioh; 142 sc->sc_iobase = ca->ca_iobase; 143 sc->sc_frequency = 115200 * 16; 144 145 if (ca->ca_noien) 146 sc->sc_hwflags |= COM_HW_NOIEN; 147 148 com_attach_subr(sc); 149 } 150